diff --git a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
index f2fa09ce03..413853a3ae 100644
--- a/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
+++ b/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/functional-programming/pass-arguments-to-avoid-external-dependence-in-a-function.english.md
@@ -28,7 +28,7 @@ tests:
   - text: Your function <code>incrementer</code> should not change the value of <code>fixedValue</code>.
     testString: assert(fixedValue === 4, 'Your function <code>incrementer</code> should not change the value of <code>fixedValue</code>.');
   - text: Your <code>incrementer</code> function should take a parameter.
-    testString: assert(code.match(/function\s+?incrementer\s*?\(.+?\)/g), 'Your <code>incrementer</code> function should take a parameter.');
+    testString: assert(incrementer.length === 1, 'Your <code>incrementer</code> function should take a parameter.');
   - text: Your <code>incrementer</code> function should return a value that is one larger than the <code>fixedValue</code> value.
     testString: assert(newValue === 5, 'Your <code>incrementer</code> function should return a value that is one larger than the <code>fixedValue</code> value.');
 
@@ -66,6 +66,12 @@ console.log(fixedValue); // Should print 4
 <section id='solution'>
 
 ```js
-// solution required
+// the global variable
+var fixedValue = 4;
+
+const incrementer = val => val + 1;
+
+var newValue = incrementer(fixedValue); // Should equal 5
+console.log(fixedValue); // Should print 4
 ```
 </section>